ABCB1 and breast cancer: it is upregulated in paclitaxel-resistant breast cancer tissue and cell linesknockdown of FTH1P3 decreases the 50% inhibitory concentration value of paclitaxel and induces cell cycle arrest at G2/M phaseknockdown of FTH1P3 suppresses the tumor growth of paclitaxel-resistant breast cancer cells and ABCB1 protein expression in vivoFTH1P3 promotes ABCB1 protein expression by downregulation of miR-206 in sponging-dependent manner